A six-mile wide asteroid or comet that slammed into Earth 66 million years ago often takes the blame for the prehistoric beasts' demise. But it may have just kicked off the earth-shaking events. The impact might have triggered catas...

Q: WERE THE DINOSAURS KILLED OFF BY AN ASTEROID IMPACT, OR BY VOLCANOES? A: YES. Study Finds Asteroid Ahead of Dinosaur Extinction Accelerated Volcanoes. “For decades, researchers have debated whether a major asteroid strike or enor...